<div class="container"> <div class="page-heading">  {% block breadcrumbs %}      {% include 'Breadcrumbs' %}    {% endblock %}  {% block title %}    {% include 'Page Header' %}  {% endblock %} </div> <div class="row">  <div class="col-sm-8 col-lg-8 left-column">   {% block main %}    {% include 'Page Copy' %}   {% endblock %}  </div>  <div class="col-sm-4 col-lg-4 right-column">   {% block aside %}{% endblock %}  </div> </div></div>